import sys
sys.setrecursionlimit(10**8)
input = sys.stdin.readline


X = int(input())
ans = min(8, 10-X//200)
print(ans) import sys sys sys.setrecursionlimit(10**8) sys.setrecursionlimit sys setrecursionlimit 10**8 10 8 input = sys.stdin.readline input sys.stdin.readline sys.stdin sys stdin readline X = int(input()) X int(input()) int input() input ans = min(8, 10-X//200) ans min(8, 10-X//200) min 8 10-X//200 10 X//200 X 200 print(ans) print ans ans = min(8, 10-X//200) min(8, 10-X//200) ans input = sys.stdin.readline sys.stdin.readline input X = int(input()) int(input()) X
import sys
sys.setrecursionlimit(10**8)
input = sys.stdin.readline


X = int(input())
ans = min(8, 10-X//200)
print(ans)